replacement for struct filedesc.fd_ofileflags

I am trying to build lsof on -current as of about a week ago. I am stuck
trying to convert this to the new world order:
if (!fd.fd_ofileflags || kread((KA_T)fd.fd_ofileflags, pof, nb))
(That's from line 314 of lsof_4.78_src/dialects/n+obsd/dproc.c
inside the work directory for pkgsrc/sysutils/lsof.)
What is the recommended new way of getting the information that
was previously available from struct fieldesc.fd_ofileflags?
--apb (Alan Barrett)